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Hoffmann, R. A wiki for the life sciences where authorship matters. Nature Genetics (2008)
 
 
 

Novel quantitative immunofluorescent technique reveals improvements in epidermal cell populations after mild treatment of psoriasis.

A novel antibody labelling technique, the Zenon technique, was used in fluorescent immunohistochemistry for a better characterization of epidermal cell populations in a quantitative approach. With this technique, differences in proliferation and differentiation characteristics were shown between psoriatic and normal epidermis. The sensitivity of the method was investigated by assessing the effect of a mild topical treatment versus an emollient.Frozen sections of non-treated psoriatic epidermis and psoriatic epidermis treated once daily with either an emollient or betamethasone-17-valerate for only 2 weeks were compared immunohistochemically. Antibodies against keratin 6, 10 and 15 were labelled with the Zenon technique, whereas antibodies against the Ki-67 antigen and beta-1 integrin were covalently FITC-labelled. Using image analysis, these markers were measured in the epidermis in a standardized manner.Treatment of psoriasis with short-term topical steroid resulted towards normalization of Ki-67 antigen, beta-1 integrin, keratin 10 and keratin 6 expression, which are parameters for proliferation and differentiation. Although treatment with an emollient showed hardly any clinical response, changes towards a more normal phenotype could already be detected in several epidermal markers using this method.[1]

References

  1. Novel quantitative immunofluorescent technique reveals improvements in epidermal cell populations after mild treatment of psoriasis. van Duijnhoven, M.W., Hagenberg, R., Pasch, M.C., van Erp, P.E., van de Kerkhof, P.C. Acta Derm. Venereol. (2005) [Pubmed]
 
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